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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // From ppb_image_data.idl modified Thu Jun  6 18:05:40 2013.
      6 
      7 #include <string.h>
      8 
      9 #include "ppapi/c/pp_errors.h"
     10 #include "ppapi/c/ppb_image_data.h"
     11 #include "ppapi/shared_impl/ppb_image_data_shared.h"
     12 #include "ppapi/shared_impl/tracked_callback.h"
     13 #include "ppapi/thunk/enter.h"
     14 #include "ppapi/thunk/ppb_image_data_api.h"
     15 #include "ppapi/thunk/ppb_instance_api.h"
     16 #include "ppapi/thunk/resource_creation_api.h"
     17 #include "ppapi/thunk/thunk.h"
     18 
     19 namespace ppapi {
     20 namespace thunk {
     21 
     22 namespace {
     23 
     24 PP_ImageDataFormat GetNativeImageDataFormat(void) {
     25   VLOG(4) << "PPB_ImageData::GetNativeImageDataFormat()";
     26   return PPB_ImageData_Shared::GetNativeImageDataFormat();
     27 }
     28 
     29 PP_Bool IsImageDataFormatSupported(PP_ImageDataFormat format) {
     30   VLOG(4) << "PPB_ImageData::IsImageDataFormatSupported()";
     31   return PPB_ImageData_Shared::IsImageDataFormatSupported(format);
     32 }
     33 
     34 PP_Resource Create(PP_Instance instance,
     35                    PP_ImageDataFormat format,
     36                    const struct PP_Size* size,
     37                    PP_Bool init_to_zero) {
     38   VLOG(4) << "PPB_ImageData::Create()";
     39   EnterResourceCreation enter(instance);
     40   if (enter.failed())
     41     return 0;
     42   return enter.functions()->CreateImageData(instance,
     43                                             format,
     44                                             size,
     45                                             init_to_zero);
     46 }
     47 
     48 PP_Bool IsImageData(PP_Resource image_data) {
     49   VLOG(4) << "PPB_ImageData::IsImageData()";
     50   EnterResource<PPB_ImageData_API> enter(image_data, false);
     51   return PP_FromBool(enter.succeeded());
     52 }
     53 
     54 PP_Bool Describe(PP_Resource image_data, struct PP_ImageDataDesc* desc) {
     55   VLOG(4) << "PPB_ImageData::Describe()";
     56   EnterResource<PPB_ImageData_API> enter(image_data, true);
     57   if (enter.failed()) {
     58     memset(desc, 0, sizeof(*desc));
     59     return PP_FALSE;
     60   }
     61   return enter.object()->Describe(desc);
     62 }
     63 
     64 void* Map(PP_Resource image_data) {
     65   VLOG(4) << "PPB_ImageData::Map()";
     66   EnterResource<PPB_ImageData_API> enter(image_data, true);
     67   if (enter.failed())
     68     return NULL;
     69   return enter.object()->Map();
     70 }
     71 
     72 void Unmap(PP_Resource image_data) {
     73   VLOG(4) << "PPB_ImageData::Unmap()";
     74   EnterResource<PPB_ImageData_API> enter(image_data, true);
     75   if (enter.failed())
     76     return;
     77   enter.object()->Unmap();
     78 }
     79 
     80 const PPB_ImageData_1_0 g_ppb_imagedata_thunk_1_0 = {
     81   &GetNativeImageDataFormat,
     82   &IsImageDataFormatSupported,
     83   &Create,
     84   &IsImageData,
     85   &Describe,
     86   &Map,
     87   &Unmap
     88 };
     89 
     90 }  // namespace
     91 
     92 const PPB_ImageData_1_0* GetPPB_ImageData_1_0_Thunk() {
     93   return &g_ppb_imagedata_thunk_1_0;
     94 }
     95 
     96 }  // namespace thunk
     97 }  // namespace ppapi
     98